haoliplus

#! /usr/bin/env python
#################################################################################
#     File Name           :     PlateModel.py
#     Created By          :     Hao Li
#     Creation Date       :     [2016-04-19 16:27]
#     Last Modified       :     [2016-04-23 15:17]
#     Description         :      
#################################################################################
from pymongo import MongoClient
import os

haoliplus

#! /usr/bin/env python
#################################################################################
#     File Name           :     test-one.py
#     Created By          :     Hao Li
#     Creation Date       :     [2016-04-08 13:44]
#     Last Modified       :     [2016-04-26 13:49]
#     Description         :      
#################################################################################

import os

haoliplus

#! /usr/bin/env python
#################################################################################
#     File Name           :     test-one.py
#     Created By          :     Hao Li
#     Creation Date       :     [2016-04-08 13:44]
#     Last Modified       :     [2016-04-26 22:24]
#     Description         :      
#################################################################################

import os

haoliplus

import matplotlib
# if your environment has no desktop.
matplotlib.use('Agg')
import matplotlib.pyplot as plt

# A scatter map.
plt.figure(figsize=(width,height))
plt.scatter(x,y)
plt.show
plt.savefig('scatter.png')

haoliplus

a = 0b101 # a = 5
a = 0xf # a = 15
a = 010 # a = 9

# to dec
int('0xf', 16) # 15
int('1011', 2) # 11
int('17', 8) # 15

# to hex

haoliplus

export FILEPATH=$(cd `dirname $0`; pwd)

haoliplus

var=/path/to/file.postfix

$(basename $var) # file.postfix
$(basename $var .postfix) # file

$(dirname $var) /path/to

haoliplus

var=/path/to/file.tar.gz

${var##*/} # file.tar.gz
${var##*.} # gz
${var#*.} # tar.gz
${var%/*} # /path/to
${var%%.*} #path/to/file.tar

haoliplus

export FILEPATH=$(cd `dirname $0`; pwd)

haoliplus

# generate pub key
ssh-keygen -t rsa
# create folder for key
ssh user@host mkdir -p .ssh
# append pub key
cat .ssh/id_rsa.pub | ssh user@host 'cat >> .ssh/authorized_keys'